User interface system, scene description generating device and method, scene description converting device and method, recording medium, and sending medium

Abstract

A user interface system comprises a server having a scene description converting device for converting scene description containing input user interaction into converted scene description while leaving parts containing the user interaction and a scene description decoding device for decoding converted scene description into decoded scene description, a remote terminal having a scene description decoding device for decoding scene description and converted scene description sent from the server and a display device for displaying decoded scenes and a user input device for receiving user input according to this display, and a display terminal for displaying decoded scenes sent from the server. Thus, decoding can be enabled at terminals having inferior decoding capabilities and display capabilities.

1. A user interface system using scene description information including user interaction, said system comprising:
 a server having converting means for converting scene description information; 
 a remote terminal having decoding means for decoding scene description information and display means for displaying scenes, wherein said server sends scene description information converted by the converting means thereof to said remote terminal, and said remote terminal decodes with the decoding means thereof and displays on the display means thereof, the converted scene description information, and wherein said converting means leaves portions describing user interaction regarding said scene description information, and converts other portions so as to be deleted; and 
 generating means for generating said scene description information, wherein said generating means encodes said scene description information with an identifier whereby judgment can be made regarding portions to be left and portions to be deleted at the time of converting said scene description information, and wherein said converting means performs conversion based on said identifier. 
 
   
   
     2. A user interface system according to  claim 1 , wherein said portions describing user interaction are portions necessary for generation, propagation, reception, or execution of events.